PH6.5 Online pH/ORP Controller

Panel-mounted pH and oxidation-reduction potential monitoring with isolated outputs.

pH range: 0.00–14.00 pH
pH accuracy: ±0.02 pH
ORP range: −2,000 to 2,000 mV

Request a quote Technical specifications

Select the measurement range, process connection and output configuration for your application.

PRODUCT OVERVIEW

Understand the instrument

The PH6.5 displays pH or ORP together with temperature information on a monochrome LCD. Temperature compensation and isolated current and digital outputs support integration with process control equipment. The controller supports relay-based alarm functions; choose a compatible electrode and temperature element for the application.

KEY FEATURES

Designed for the task

pH and ORP operating modes
2.8-inch monochrome LCD
Automatic or manual temperature compensation
Isolated analog and digital outputs

TECHNICAL DATA

Specifications at a glance

Values below describe the listed product family. Optional ranges and functions depend on the selected configuration.

PH6.5 Online pH/ORP Controller — technical specifications
Parameter	Specification
pH range	0.00–14.00 pH
pH accuracy	±0.02 pH
ORP range	−2,000 to 2,000 mV
ORP accuracy	±1 mV from −1,000 to 1,000 mV; ±2 mV outside that interval
Input resistance	≥10¹² Ω
Temperature compensation	−10 to 130 °C; NTC10K, Pt1000 or customized Pt100
Analog output	4–20 mA; maximum loop 750 Ω; ±0.2% FS
Digital output	Isolated RS485, Modbus-RTU
Operating temperature	0–60 °C
Power options	220 VAC ±10%, 110 VAC ±10% or 24 VDC ±10%; ≤6 W
Dimensions	100 × 100 × 150 mm
Panel cutout	92.5 × 92.5 mm
Protection	IP5X

Confirm the final measuring range, material compatibility, operating limits and applicable approvals for the exact configuration before ordering. Product appearance may vary by version.

APPLICATION AREAS